MAXILLARY ANESTHESIA TECHNIQUES
* Anatomical Landmarks:
• Mucobuccal fold
• Zygomatic process of the maxilla
• Infratemporal surface of maxilla
• Anterior border and coronoid process of the Ramus of the mandible
• Maxilalry Tuberosity
* Nerves Anesthetized:
Posterior Superior Alveolar Nerve and its branches
* Areas Anethetized:
• Maxillary Molars of the Side of injection except the Mesio-Buccal Root of the Maxillary First molar
• Buccal alveolar process covering the maxillary molars
• Periosteum covering the Maxillary molars Connective tissue covering the Maxillary molars
• Mucous membrane covering the Maxillary molars
* Technique for Posterior Superior Alveolar Nerve block:
• patient position:- the back rest of the dental chair is tilted to a 45 degree angle to the floor, this helps to keep the occlusal plane of the patient at 45 degrees when the patient opens his/her mouth.
• operator position:- 10 o'clock position
• area of insertion :- muccobuccal fold above the mesial cusp of the second molar.
• bevel of needle :- towards the bone
• procedure :- needle is inserted at the area of insertion nd give a upward ,backward nd inward rotation of the needle.
- inject a 0.9 to 1.8 ml of L.A
- wait for 2 minutes and check for the subjective nd objective signs.
* Amount of L.A :- 0.9 to 1.8 ml
* subjective nd objetive signs :-
- objective signs : instrumentation done with the use either with the tip of blunt probe or elevator to check for objective symptoms.
• The aneathetized tissue nd tooth to be pressed ande tapped as compared to the un-anesthetized tissues.
- subjective signs : we cannot find any particular subjective signs.
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